Deep dives, practical guides, and incident analyses from engineers who build Safeguard. No fluff, no vendor FUD — just what you need to ship secure software.
The Python requests library leaked Authorization headers on same-host HTTPS-to-HTTP redirects, exposing credentials to sniffing before v2.20.0.
A malicious proxy could capture Proxy-Authorization credentials from Python's requests library when redirects crossed to HTTPS, before v2.31.0.
CVE-2021-33503 exposes urllib3 before 1.26.5 to a ReDoS in URL authority parsing, letting attacker URLs exhaust CPU. What to patch and why.
CVE-2020-26137 let attackers inject CRLF sequences into urllib3-built HTTP requests. Here's the impact, affected versions, and how to remediate it.
CVE-2017-18342 lets attackers achieve remote code execution via PyYAML's yaml.load(), which deserialized untrusted YAML into live Python objects by default.
CVE-2020-1747 shows PyYAML's FullLoader and full_load() could still trigger arbitrary code execution on untrusted YAML before 5.3.1. Here's the full breakdown.
CVE-2020-14343 lets attackers run arbitrary code via PyYAML's python/object/new tag, bypassing an earlier FullLoader fix. Versions, CVSS, and remediation inside.
CVE-2022-22817 lets attackers achieve arbitrary code execution via Pillow's ImageMath.eval() when environment data is attacker-controlled. Patch to 9.0.1+.
A buffer over-read in Pillow's PCX decoder (CVE-2020-35654) could crash image-processing services on crafted files. Here's the fix and detection guidance.
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